These are the income tax brackets for 2015

For 2015, there are seven federal income tax brackets. Here are the dollar amounts of taxes owed at each threshold, plus your marginal tax rate, which is the rate at which the remaining portion of your income is taxed.

Damian Dovarganes/AP/File

An IRS Estimated Tax form at H & R Block tax preparation office in the Echo Park district of Los Angeles.

No matter which bracket you’re in, you won’t pay that rate on your entire 2015 income. First, exemptions and deductions are subtracted to determine your taxable income. Then, your taxable income gets divided into chunks based on the tax brackets, and each chunk gets taxed at the corresponding rate.

For example, single filers with a taxable income of $32,000 land in the 15% tax bracket, but pay just 10% on the portion of their income that falls into the lowest bracket (up to $9,225), then 15% on income above that amount.

The charts below, provided by the Internal Revenue Service, show the dollar amount of taxes owed at each threshold, plus your marginal tax rate, which is the rate at which the remaining portion of your income is taxed.

Once your income tax burden is calculated, you apply any tax credits you qualify for; they reduce your tax bill on a dollar-for-dollar basis.

It’s unlikely you’ll have to do much of the math yourself. Any online tax preparation software will do the calculations for you, and if you file paper returns, the IRS instructions provide tax tables with net taxes owed on every income amount up to $100,000.